ORCHID CHEMICALS & PHARMACEUTICALS LTD, Patent applications |
Patent application number | Title | Published |
20120165527 | PROCESS FOR THE PREPARATION OF PURE PALIPERIDONE - The present invention relates to an improved process for the preparation of pure Paliperidone of formula (I). The present invention more specifically provides an improved process for the preparation of pure Paliperidone which may contain impurities in the acceptable level of pharmacopoeia requirement specifically 3-{2-[4-(5-Fluoro-benzo[d]isoxazol-3-yl]-piperidin-1-yl]-ethyl}-2-methyl-7,8-dihydro- | 06-28-2012 |
20120035357 | PROCESS FOR THE PREPARATION OF CARBAPENEM ANTIBIOTIC - The present invention relates to an improved process for the preparation of the carbapenem antibiotic of formula (I) or its salts, hydrates and esters. The present invention further provides novel crystalline form of compound of general formula (III), wherein R | 02-09-2012 |
20100261897 | Improved Process For the Preparation of Cephalosporin Antibiotic Intermediate - The present invention relates to a process for the production of cephalosporin antibiotic intermediate of formula (I). More particularly relates to the preparation of the compound of formula (I) using a solvent medium selected from the group consisting of decalin (decahydronapthalene), hexane, cyclohexene, tetralin, petroleum ether, wherein X represents HI, HCI, H2SO4 and the like. The compound of formula (I) is an important intermediate in the preparation of Cefepime. | 10-14-2010 |